Lost Sword Pets Guide: Best Pets, Skills & How to Upgrade Them

With the new Lost Sword update on 5th February 2026, fans are all buzzing about the new game content. The most exciting thing about this update is Nesha, a brand-new addition to the Lost Sword Characters pool. You can summon her as soon as the update drops. With all these amazing new additions, players are wondering what new team comps they can try along with the available Lost Sword Pets.

Lost Sword Pets are not only just cute stat sticks but also game-defining pawns that can melt bosses, give you massive crowd control or def shred buffs, and push your damage ceiling way higher than you expect. And that’s why you need to choose them wisely. Choosing the right pet can also make you cruise through the content like butter. So if you’re chasing big damage numbers or just want to clear the game content with ease, this guide will help you choose the best Lost Sword Pet!

If you’re looking to get more information about Lost Sword, feel free to check out the related guides below:

• Lost Sword Gearing Guide: Best Gear Sets, Upgrades & Power Scaling
• Lost Sword Merlin Guide: Skills, Builds & Best Team Compositions

These guides can help you boost your progress and enhance your overall gameplay experience.

By the way, if you’re already eager to play Lost Sword, we highly recommend playing Lost Sword on PC and Mac with MuMuPlayer for a smoother gameplay experience. MuMuPlayer is the top Android emulator that offers optimal gaming performance with smooth keyboard and mouse controls, high FPS, and multi-instance support.

You could also directly download Lost Sword PC on MuMuPlayer if you don’t want to miss out on the latest game updates.

How To Get & Upgrade Lost Sword Pets

Lost Sword Pets are mostly available from the "Claim Pet" on the gacha banners, with a 3% chance of a five-star pet and come with their own pity counter, guaranteed at 120 pulls. You can summon them by using a Pet Selection Ticket from the mileage/exchange shop, by participating in events, or via crafting.

You can also acquire multiple copies of a single pet. By using these copies, you can upgrade the pet levels via the Transcend Process. This can increase the active skills stats based on how many times you have transcended your pet. Also, do remember that only the front row pets can use their active skills. The middle and back row pets can use buff your party but cannot inflict damage. Therefore, place pets with top-tier skills or stat boosts in the field, let the other ones stand behind to add some passive bonuses.

Top 5 Best Pets, Skills & How to Upgrade Them

1. Tiamat

Pet Attributes (level 1): ATK +36%, Additional Damage +6%

Active Skill: Her active skill is called Touch of Destruction, which deals 244% ATK damage to all enemies and applies Defense Reduction (−10%) for 3s. This skill has a 10-second cooldown.

Tiamat is one of the best Lost Sword Pets to have. Because of her def shred abilities, she can help your teams clear extremely difficult stages with ease. She also deals additional damage with her active skill that can be a huge add-on to your overall team DPS. And all this makes her a really versatile pet to have.

Skill Priority: Ultimate > Active > Passive 1 = Passive 2

2. Ran

Pet Attributes (level 1): ATK +36%, Critical Damage +20%

Active Skill: Her active skill is called Sword Dance, which deals 244% ATK damage to all enemies, and the damage is increased by 100% against targets affected by Shock. This skill has a 5-second cooldown.

If you like to play Shock teams, then Ran is your best choice. She especially shines in Shock teams as her active skill deals huge damage to enemies affected by Shock. Also, this skill’s cooldown is just 5 seconds, so you can apply it over and over again to deal frequent instances of damage.

3. Lohengrin

Pet Attributes (level 1): ATK +36%, Ignore Damage Reduction +6%

Active Skill: Her active skill is called Allegro, which increases Attack Speed by 20% for all allies for 20s. This skill has a 20-second cooldown.

With Lohengrin’s attack speed buffs, your team's damage output can get a massive upgrade. This buff also has a full uptime, so you don’t have to worry about timing your team rotations. She especially shines in team comps with Dian Cecht.

4. Merlin

Pet Attributes: Additional Damage +11%, Damage Reduction +6%

Active Skill: Her active skill is called Ice Beam, which deals 150% ATK damage to all enemies, Freezes them (no actions) for 1s, and applies Critical Resistance Reduction (−5%) for 20s. This skill has a 20-second cooldown.

Merlin provides a crit-resistance debuff that gives your team a powerful boost for strong enemies for 20 seconds. Also, she freezes your enemies so that you can have a headstart. You can pair her with almost all frontline burst DPS characters.

5. Athena

Pet Attributes (level 1): ATK +36%, Additional Damage +6%

Active Skill: Her active skill is called Spear of Victory, which deals 765% ATK damage to a single enemy target. This skill has a 20-second cooldown.

With Athena’s single-target burst, you can beat tanky bosses with ease. Her high 765% ATK multiplier makes her one of the strongest picks for raw damage. She shines brightest in boss fights and raid content, especially when paired with teams that can benefit from amplified burst damage.

Best Lost Swords Pet Overview

Pet Name	Active Skill (Effect)	Key Stats / Scaling	Strengths	Best Use / Synergy
Tiamat	Touch of Destruction: Deals 244% ATK AoE and applies DEF Reduction −10% (3s). 10s CD	ATK +36%, Additional Damage +6%	Defense shred, high uptime, strong AoE damage	High-DEF stages, general PvE, burst comps
Ran	Sword Dance: Deals 244% ATK AoE, +100% damage vs Shocked enemies. 5s CD	ATK +36%, Crit DMG +20%	Extremely high DPS in Shock teams, very low cooldown	Shock-based teams, sustained AoE DPS
Lohengrin	Allegro: Increases Attack Speed +20% for all allies (20s). 20s CD	ATK +36%, Ignore Damage Reduction +6%	Full uptime AS buff, boosts team DPS	Auto-attack comps, Dian Cecht teams
Merlin	Ice Beam: Deals 150% ATK AoE, Freeze (1s), Crit Res −5% (20s). 20s CD	Additional DMG +11%, DR +6%	Long debuff duration, crowd control, team damage boost	Burst DPS teams, tough enemies
Athena	Spear of Victory: Deals 765% ATK single-target damage. 20s CD	ATK +36%, Additional Damage +6%	Massive boss burst, simple and reliable	Boss fights, raids, burst windows

Play Lost Sword on PC or Mac with MuMuPlayer

For the ultimate gaming experience, we suggest you download Lost Sword PC on MuMuPlayer. This emulator offers several advantages:

1. Smooth Gaming Experience

Enjoy smooth, stable gameplay with high FPS—perfect for long sessions, exploration, or fast-paced moments. The larger screen and sharper visuals also make details, UI, and effects easier to read.

2. Smart & Customizable Controls

Customize smart keyboard and mouse mappings for precise and comfortable control. MuMuPlayer also supports gamepad input, offering a familiar, PC-like playstyle for any game genre.

3. Multi-Instance Productivity

Run multiple instances at the same time to boost efficiency. Ideal for managing accounts, farming resources, or multitasking between different in-game activities.

4. Full Platform Support

Fully compatible with Windows and macOS, delivering optimized performance across devices. 

Conclusion

The Lost Sword pets are more than just stat boosters. Tiamat’s shred for easier clears, while Ran's non-stop damage in shock setups. Lohengrin’s permanent attack speed buff. On the other hand, Merlin’s lasting debuffs and control and Athena’s insane boss burst. The trick is knowing what your team is missing and adding pets tactically to boost your overall team DPS Not only that, smart pet picks can also become more crucial as new characters join the pool in the upcoming updates.